I Tim, a limited partner of Jackson, LP, is allocated $20,000 of ordinary business loss from the partnership. Before the loss allocation, his tax basis is $15,000 and his at-risk amount is $20,000. Tim also has ordinary business income of $5,000 from Yahoo, LP, as a general partner. Assuming that Tim has no other source of income or loss, how much of the $20.000 loss from Jackson LP can Tim deduct after applying all loss limitations